Dissertation / PhD Thesis/Book PreJuSER-31808

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Sicherheitselemente zur Beseitigung von Wasserstoff aus inertisierten Containments von Siedewasserreaktoren



2001
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Jülich : Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag, Berichte des Forschungszentrums Jülich 3919, II, 130 p. () = Aachen, Techn. Hochsch., Diss., 2001

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Report No.: Juel-3919

Abstract: In Light-Water-Reactors a zirconium-steam reaction and additional metal corrosion during heavy accidents with core meltdown can result in massive hydrogen release. According to a safety study conducted by GRS an existing Boiling-Water-Reactors (BWR) and studies an future designs for BWR, this may cause a pressure built-up in the containment. As a consequence depressurisation of the containment atmosphere is required. Experiments were conducted basing an these studies to remove hydrogen from the containment with regard to maintaining its integrity. In a literature study conducted before oxidation of hydrogen with manganese dioxide and separation by means of metal membranes were found as methods with highest potential. Their feasibility in varying accident environments was shown. The oxidation reaction proved to be fast without additional hazards. However, the high amount of oxidant needed is disadventageous. The hydrogen removal by means of metal membranes is slower than in case of the oxidation reaction, but there is no limitation of a fixed amount of hydrogen. Their potential for an application in reactor containments is higher especially if the permeability of the membranes can be augmented. Harmful, however, is the hydrogen pressure difference needed for matter transport.


Note: Record converted from VDB: 12.11.2012
Note: Aachen, Techn. Hochsch., Diss., 2001

Contributing Institute(s):
  1. Sicherheitsforschung für kerntechnische Anlagen (ISR-2)
Research Program(s):
  1. Sicherheitsanalysen (17.60.0)

Appears in the scientific report 2001
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 Record created 2012-11-13, last modified 2020-06-10